Friday, July 10, 2026

Drug profile · INN

fostamatinib

fostamatinib (TAVLESSE) is a tyrosine-protein kinase syk inhibitor.

EMA: approved Blood and blood forming organs (B02) B02BX
Patents linked 0
Pipeline programs 17
News articles 0
Drug details — fostamatinib
Class
Blood and blood forming organs (B02)
Route
Patents
0
Programs
17
Data quality
0.83

Quick answer

fostamatinib (TAVLESSE) is a tyrosine-protein kinase syk inhibitor.

Key facts

INN fostamatinib
Brand TAVLESSE
Mechanism Tyrosine-protein kinase SYK inhibitor
Target Tyrosine-protein kinase SYK
Therapeutic class Blood and blood forming organs (B02)
ATC code B02BX

Mechanism of action

Tyrosine-protein kinase SYK inhibitor

Primary target: Tyrosine-protein kinase SYK

Approval history

Authority Status Date
EMA approved

Pipeline programs

  1. Fostamatinib Phase 3 · RIGEL PHARMACEUTICALS · Covid19
  2. Fostamatinib disodium Phase 3 · RIGEL PHARMACEUTICALS · Immune Thrombocytopenic Purpura
  3. Fostamatinib disodium Phase 3 · RIGEL PHARMACEUTICALS · Warm Antibody Autoimmune Hemolytic Anemia
  4. Fostamatinib Phase 2 · RIGEL PHARMACEUTICALS · Myelofibrosis
  5. Fostamatinib Phase 2 · RIGEL PHARMACEUTICALS · Hidradenitis Suppurativa
  6. Fostamatinib Phase 2 · AstraZeneca · Rheumatoid Arthritis
  7. Fostamatinib 150 mg Phase 2 · RIGEL PHARMACEUTICALS · IGA Nephropathy
  8. Fostamatinib 150 mg bid Phase 2 · RIGEL PHARMACEUTICALS · Warm Antibody Autoimmune Hemolytic Anemia

Related & competitor drugs

  1. apixaban Blood and blood forming organs (B01)
  2. berotralstat Blood and blood forming organs (B06)
  3. bivalirudin Blood and blood forming organs (B01)
  4. c1 inhibitor (human) Blood and blood forming organs (B06)
  5. clopidogrel Blood and blood forming organs (B01)
  6. dabigatran etexilate Blood and blood forming organs (B01)

Frequently asked questions

What is fostamatinib?

fostamatinib (TAVLESSE) is a tyrosine-protein kinase syk inhibitor.

What is the brand name for fostamatinib?

TAVLESSE is a marketed brand name for fostamatinib. Check FDA Drugs@FDA for the current US label holder and prescribing information.